Sharp R-2397 Test Procedure Possible Cause Defective Parts, Plugged into wall outlet

Page 10

R-2397

TEST PROCEDURE

POSSIBLE CAUSE

AND

DEFECTIVE PARTS

CONDITION

 

PPROBLEM

 

 

 

“ . “ does not appear on display when power

 

cord is plugged into wall outlet.

 

Control panel can not accept key in.

 

Fuse F6.3A blows when the door is opened.

 

Home fuse blowns when power cord is plugged

 

into wall outlet.

 

Weak point A017 blowns when power cord is

 

plugged into wall outlet.

 

Oven lamp, fan motor and stirrer motors do not

 

work for 1 minute whenever the door is opened

OFF

or after cooking.

CONDITION

Fuse F2 F6.3A blowns when power cord is

 

 

plugged into wall outlet.

 

Oven lamp does not light when door is opened.

 

(Blower and stirrer motors work)

 

Blower motor does not work when door is

 

opened. (Oven lamp lights and stirrer motors

 

work)

 

“EE

1” appear in display.

 

“EE

2” appear in display.

 

“EE

3” appear in display .

 

“EE

6” appear in display.

 

“EE

7” appear in display.

 

“EE

9” appear in display.

 

Oven lamp, blower motor and stirrer motors do

 

not work.

 

Oven lamp does not work.

 

Blower motor does not work.

 

Oven does not stop after end of cooking cycle or

 

when STOP/CLEAR key is touched. (Oven lamp,

 

blower motor and stirrer motors stop.)

ON

Home fuse blows when starting the oven.

Oven goes into cook cycle but shuts down

CONDITION

 

before end of cooking cycle.

 

Oven seems to be operating but no heat is

 

produced in oven load.

 

It passed more than 1 minute after cooking but

 

oven lamp, blower motor and stirrer motors do

 

not stop.

 

“EE

0” appear in display .

 

“EE 16” appear in display.

 

“EE 17” appear in display.

 

“EE

8” appear in display .

 

“EE

10” appear in display .

 

Stirrer motors do not work.

 

 

 

A A B B C C C D D E E E E E F F G H

 

 

T1

T2

MG1

MG2

 

 

 

 

 

 

 

 

 

 

 

 

MAGNETRON MG1

MAGNETRON MG2

HIGH VOLTAGE TRANSFORMER

HIGH VOLTAGE TRANSFORMER

H.V. RECTIFIER ASSEMBLY FOR

H.V. RECTIFIER ASSEMBLY FOR

H.V. WIRE HARNESS

H.V. CAPACITOR C1

H.V. CAPACITOR C2

1ST. LATCH SWITCH

2ND. LATCH SWITCH

3RD. LATCH SWITCH

MONITOR SWITCH

STOP SWITCH

WEAK POINT A018 F3

WEAK POINT A018 F4

WEAK POINT A017 F1

FUSE 6.3A F2

8

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Contents Table of Contents Commercial Microwave Oven2397 2397 Sharp Corporation OSAKA, JapanCommercial General Important InformationGeneral Information SpecificationProduct Description DescriptionAppearance View Installation InformationDisplay and Indicators Operating KeysMicrowave Cooking Condition Operation SequenceOFF Condition Microwave Variable CookingFunction of Important Components Intake Thermistor Asymmetric RectifierExhaust Thermistor Magnetron ThermistorRemember to Check 3D Troubleshooting GuideServicing Remember to Check 4RTest Procedure Possible Cause Defective Parts Plugged into wall outletTemperature of Intake Thermistor is High Microwave Output Power IEC-705-1988 Test ProceduresProcedure Component Test Letter Magnetron Test Around 20 C Power supply Voltage Rated voltageCarry OUT 3D Checks Procedure Letter Component TestHigh Voltage Transformer Test Carry OUT 4R ChecksHigh Voltage Capacitor Test Carry OUT 3D Checks Procedure Component Test LetterSwitch Test Weak Point A018Table Thermal Cut-out Test Fuse F6.3A TestThermal CUT-OUT Test Carry OUT 3D Checks Monitor Resistor Test Carry OUT 3D ChecksIntake Thermistor Test Procedure Component Test Letter Magnetron Thermistor TestExhaust Thermistor Test Motor Winding TestMin Cx ± 20% Cy ± 20% 5mH Touch Control Panel Assembly TestKEY Unit Test Relay Test Test Procedures ContdTo determine if the control unit or key pad is at fault CircuityStop Switch Circuit Power Supply CircuitPower Sync Signal Generating Circuit Exhaust Air Temperature Detecting CircuitDescription of LSI LSIIZA646DR Power source voltage Pin No Signal DescriptionInternal clock oscillation frequency setting input Signal coming from touch keySound Voltage level control terminal Shapes of Electronic Components Other PrecautionsServicing Servicing of Touch Control PanelProcedure for Entering to IC-2 Practice for checking total service counts eg 234,567 CountsTo check the contents of defrost Flicker / 0.1 sec Buzzer Other Checking and Clearing PRO CedureHigh Voltage Components Removal Component Replacement and Adjustment ProcedureOuter Case Removal To remove the components, proceed as followsBlower Motor Removal Magnetron RemovalHigh Voltage Transformer Removal Stirrer Motor Upper RemovalControl Panel Assembly Removal Control Panel Assembly and Control Unit RemovalHOW to Release the Positive Lock Connector ProcedureRe-install Power Supply Cord ReplacementAfter adjustment, make sure of the following Door Adjustment Door Replacement and AdjustmentDoor Replacement Choke Cover RemovalMicrowave Measurement Service InformationPreparation for Testing RequirementFigure O-1. Oven SChematic-OFF Condition High Voltage Components Circuit C d eFigure S-3. Printed Wiring Board Electric Parts Parts ListParts marked * are used in voltage more than Cabinet PartsVCEAB31HW104M Oven Parts Door PartsMiscellaneous SCRE, Nuts and WashersREF. no HOW to Order Replacement PartsModel Number DescriptionOven and Cabinet Parts Control Panel Parts Door Parts Not replaceable items 2397

R-2397 specifications

The Sharp R-2397 is a high-performance microwave oven that combines advanced technology with user-friendly features, making it a popular choice for modern kitchens. This model stands out due to its sleek design and efficient functionality, catering to both cooking enthusiasts and busy households alike.

One of the most notable features of the Sharp R-2397 is its powerful microwave cooking capabilities. With a wattage rating of 900 watts, it ensures that food is cooked evenly and quickly, allowing users to prepare meals in a fraction of the time compared to conventional ovens. The unit also offers multiple power levels, enabling precise cooking adjustments for various types of food, from defrosting to reheating and everything in between.

Another key characteristic of the R-2397 is its spacious interior. With a generous capacity of 23 liters, this microwave can accommodate larger dishes, making it suitable for families or individuals who enjoy hosting gatherings. The turntable feature promotes even cooking by rotating food continuously, ensuring that every inch is heated uniformly.

Additionally, the Sharp R-2397 is equipped with a range of convenient presets and auto-cook functions. These pre-programmed settings allow users to optimize cooking times for common dishes, such as popcorn, vegetables, and frozen meals, simplifying meal preparation and enhancing user experience. The intuitive control panel is designed to be user-friendly, ensuring that anyone can operate the microwave with ease.

Safety is also a significant consideration in the design of the Sharp R-2397. The unit comes with a child lock function, preventing accidental operation and ensuring that the oven is used safely in households with young children. This feature adds peace of mind for parents while using the appliance in their daily routines.

Moreover, the R-2397 incorporates a modern aesthetic that can fit into various kitchen styles. Its polished exterior and compact design make it both attractive and practical, with the added advantage of easy cleaning and maintenance.

In summary, the Sharp R-2397 is a versatile microwave oven that offers a blend of power, efficiency, and user-centric features. With its high wattage, spacious interior, smart presets, and safety measures, it is an excellent addition to any kitchen, catering to everyday cooking needs and helping to simplify meal times. Whether reheating leftovers or cooking a new recipe, the Sharp R-2397 sets itself apart as a reliable kitchen companion.
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